Valcyte, known generically as valganciclovir, is an antiviral medication primarily used to treat or prevent cytomegalovirus (CMV) infections, a type of herpes virus, in individuals who have received organ transplants or those with weakened immune systems. Valcyte works by inhibiting the replication of viral DNA, thereby reducing the spread of the virus within the body. It is often prescribed in tablet form and must be taken according to the healthcare provider's instructions to ensure effectiveness and minimize potential side effects. Due to its potent antiviral properties, Valcyte plays a crucial role in managing CMV infections, which, if left untreated, can lead to serious health complications, including vision loss, digestive system issues, and even life-threatening conditions.